Kristian Høgsberg | 3038e35 | 2006-12-19 19:58:27 -0500 | [diff] [blame] | 1 | /* -*- c-basic-offset: 8 -*- |
| 2 | * |
| 3 | * fw-topology.h -- Incremental bus scan, based on bus topology |
| 4 | * |
| 5 | * Copyright (C) 2003-2006 Kristian Hoegsberg <krh@bitplanet.net> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software Foundation, |
| 19 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 20 | */ |
| 21 | |
| 22 | #ifndef __fw_topology_h |
| 23 | #define __fw_topology_h |
| 24 | |
| 25 | enum { |
| 26 | FW_NODE_CREATED = 0x00, |
| 27 | FW_NODE_UPDATED = 0x01, |
| 28 | FW_NODE_DESTROYED = 0x02, |
| 29 | FW_NODE_LINK_ON = 0x03, |
Stefan Richter | 5af4e5e | 2007-01-21 20:45:32 +0100 | [diff] [blame^] | 30 | FW_NODE_LINK_OFF = 0x04, |
Kristian Høgsberg | 3038e35 | 2006-12-19 19:58:27 -0500 | [diff] [blame] | 31 | }; |
| 32 | |
| 33 | struct fw_port { |
| 34 | struct fw_node *node; |
| 35 | unsigned speed : 3; /* S100, S200, ... S3200 */ |
| 36 | }; |
| 37 | |
| 38 | struct fw_node { |
| 39 | u16 node_id; |
Stefan Richter | 5e20c28 | 2007-01-21 20:44:09 +0100 | [diff] [blame] | 40 | u8 color; |
Kristian Høgsberg | 3038e35 | 2006-12-19 19:58:27 -0500 | [diff] [blame] | 41 | u8 port_count; |
| 42 | unsigned link_on : 1; |
| 43 | unsigned initiated_reset : 1; |
| 44 | unsigned b_path : 1; |
| 45 | u8 phy_speed; /* As in the self ID packet. */ |
| 46 | u8 max_speed; /* Minimum of all phy-speeds and port speeds on |
| 47 | * the path from the local node to this node. */ |
| 48 | |
| 49 | atomic_t ref_count; |
| 50 | |
Stefan Richter | 5e20c28 | 2007-01-21 20:44:09 +0100 | [diff] [blame] | 51 | /* For serializing node topology into a list. */ |
Kristian Høgsberg | 3038e35 | 2006-12-19 19:58:27 -0500 | [diff] [blame] | 52 | struct list_head link; |
| 53 | |
| 54 | /* Upper layer specific data. */ |
| 55 | void *data; |
| 56 | |
Stefan Richter | 5e20c28 | 2007-01-21 20:44:09 +0100 | [diff] [blame] | 57 | struct fw_port ports[0]; |
Kristian Høgsberg | 3038e35 | 2006-12-19 19:58:27 -0500 | [diff] [blame] | 58 | }; |
| 59 | |
Adrian Bunk | 95688e9 | 2007-01-22 19:17:37 +0100 | [diff] [blame] | 60 | static inline struct fw_node * |
Kristian Høgsberg | 3038e35 | 2006-12-19 19:58:27 -0500 | [diff] [blame] | 61 | fw_node(struct list_head *l) |
| 62 | { |
Stefan Richter | 5e20c28 | 2007-01-21 20:44:09 +0100 | [diff] [blame] | 63 | return list_entry (l, struct fw_node, link); |
Kristian Høgsberg | 3038e35 | 2006-12-19 19:58:27 -0500 | [diff] [blame] | 64 | } |
| 65 | |
Adrian Bunk | 95688e9 | 2007-01-22 19:17:37 +0100 | [diff] [blame] | 66 | static inline struct fw_node * |
Kristian Høgsberg | 3038e35 | 2006-12-19 19:58:27 -0500 | [diff] [blame] | 67 | fw_node_get(struct fw_node *node) |
| 68 | { |
| 69 | atomic_inc(&node->ref_count); |
| 70 | |
| 71 | return node; |
| 72 | } |
| 73 | |
Adrian Bunk | 95688e9 | 2007-01-22 19:17:37 +0100 | [diff] [blame] | 74 | static inline void |
Kristian Høgsberg | 3038e35 | 2006-12-19 19:58:27 -0500 | [diff] [blame] | 75 | fw_node_put(struct fw_node *node) |
| 76 | { |
| 77 | if (atomic_dec_and_test(&node->ref_count)) |
| 78 | kfree(node); |
| 79 | } |
| 80 | |
| 81 | void |
| 82 | fw_destroy_nodes(struct fw_card *card); |
| 83 | |
Stefan Richter | 687198b | 2006-12-28 16:20:00 +0100 | [diff] [blame] | 84 | #endif /* __fw_topology_h */ |